Term
| Traditional areas of study in Chemistry |
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Definition
Organic
Inorganic
Biochemistry
Analytical
Physical |
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Term
| Differences between pure and applied chemistry |
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Definition
Pure- pursuit of knowledge for its own sake
Applied- directed toward practical goals or applications |
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Term
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Definition
Explain natural world
Prepare people for career opportunities
Produce informed citizens |
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Term
| Distinguish between macroscopic and microscopic views |
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Definition
Macro- large enough to be sen by the unaided eye
Micro- can only be seen under magnification |
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Term
| How did Lavoisier transform chemistry? |
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Definition
| science of observation to science of measurement |
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Term
| Importance of collaboration and communication |
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Definition
| Increases likelihood of a succesful outcome |
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Term
| Two general steps in problem solving |
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Definition
| Develop and plan and implement that plan |
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Term
| Three steps to solving numeric problems |
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Definition
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Term
| Two steps to solving a conceptual problem |
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Definition
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Term
| Several common physical properties |
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Definition
Hardness
Color
Conductivity
Malleability
State
Melting + Boiling points |
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Term
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Definition
| Some properties of a material change, but the composition does not change |
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Term
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Definition
Substance- has a uniform and definite composition
Mixture- physical blend of 2 or more components |
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Term
| Homogenous vs heterogenous |
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Definition
Homo- compostiton is uniform throughout
Hetero-comp. is not uniform |
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Term
| Ways to seperate a mixture |
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Definition
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Term
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Definition
Element- simplest form of matter with unique set of properties
Compound- contains two or more elements chemically combined |
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Term
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Definition
| Produces matter w/ a different composition than the original matter |
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Term
| Law of conservation of math |
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Definition
| In any physical change or chemical reaction, mass is conversed |
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Term
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Definition
Mass- measure of amount of matter an object contains
Weight- the pull on a given mass by gravity |
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Term
| Celsius to Kelvin conversion |
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Definition
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Term
| Equation for calculating density |
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Definition
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Term
| Democritus's atomic theory |
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Definition
| Atoms are indivisible and indestrusctible |
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Term
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Definition
1. All elements are composed of tiny indivisible particles.
2. Atoms of element are identical. Different element = different atoms.
3. Atoms of different elements can physically mix or chemically combine.
4. Atoms of one element are never changed into atoms of a different element. |
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Term
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Definition
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Term
| Rutherford's atomic model |
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Definition
1. Protons and neutrons located in nucleus
2. Electrons distributed around nucleus and occupy almost all volume of the atom |
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Term
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Definition
| Element with different number of neutrons |
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Term
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Definition
| Number of protons in the nucleus of an atom |
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Term
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Definition
| Total number protons and neutrons |
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Term
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Definition
| An electron is found only in specific orbits around the nucleus |
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Term
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Definition
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Term
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Definition
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Term
| Quantum vs Classical mechanics |
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Definition
Quantum- describes motions of subatomic particles and atoms waves
Classical- describes motions of bodies much larger than atoms |
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Term
| Properties of ionic compounds |
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Definition
1. Crystalline solid at room temp.
2. High melting points
3. conduct electricity when dissolved in water or melted |
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Term
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Definition
| Mixtures composed of 2 or more elements, at least one of which is a metal |
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Term
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Definition
Ionic- consists of cations and anions
Metallic- consists of free-flowing valence electrons attracted to posistive metal ions |
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Term
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Definition
| Shows how many atoms of each element a molecule contains |
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